Q.1 Which of the following numbers are not perfect cubes?
(i) 216
Q. Check which of the following are perfect cubes.
(i) 2700
(ii) 16000
(iii) 64000
(iv) 900
(v) 125000
(vi) 36000
(vii) 21600
(viii) 10,000
(ix) 27000000
(x) 1000.
What pattern do you observe in these perfect cubes?
Q. Which of the following are perfect cubes?
1. 400
2. 3375
3. 8000
4. 15625
5. 9000
6. 6859
7. 2025
8. 10648
We will find it by prime factorisation whether they make pair of three prime numbers or not.
(1) . So not a perfect cube.
(2) . So it is a perfect cube.
(3) . So it is a perfect cube.
(4) . So it is a perfect cube.
(5) . So it is not a perfect cube.
(6) . So it is a perfect cube.
(7) . So it is not a perfect cube.
(8) . So it is a perfect cube.
Q. Consider the following pattern.
Using the above pattern, find the value of the following.
(iv)
Q. Consider the following pattern.
Using the above pattern,find the value of the following.
(iii)
The detailed solution for all the above-written question is as follows
Using the above pattern,
find the value of the following.
(ii)
The detailed solution of the above-written question is as follows,
Using the above pattern,
find the value of the following.
(i)
Q.Express the following numbers as the sum of odd numbers using the above pattern?
(c)
Q. Express the following numbers as the sum of odd numbers using the above pattern?
(b)
Q. Express the following numbers as the sum of odd numbers using the above pattern?
(a)
Q. Find the one’s digit of the cube of each of the following numbers.
(viii) 53
Q. Find the one’s digit of the cube of each of the following numbers.
(vii) 5022
Q. Find the one’s digit of the cube of each of the following numbers.
(vi) 77
Q. Find the one’s digit of the cube of each of the following numbers.
(v) 1024
Q. Find the one’s digit of the cube of each of the following numbers.
(iv) 1005
Q. Find the one's digit of the cube of each of the following numbers.
(iii) 149
Q. Find the one’s digit of the cube of each of the following numbers.
(ii) 8888
Q. Find the one’s digit of the cube of each of the following numbers.
(i) 3331